For the last 2 years I have been flying the 37.5" EPP Extra that Mile High R/C sells. I really enjoy flying it and it's very durable. I saw that they had a 49 1/2" Yak 55m in stock from the same company (WM Aerobatics), so I ordered one. The price is good at $98.00 plus shipping. It arrived in great condition.
Here's a link to the plane. http://www.milehighrc.com/EPP_Yak55M.html
Troy

The hinges are already glued on one side, apply CA on the other side of the hinge and then install. The control horn does not go completely through the aileron so the backplate is not used on the ailerons.